US PATENT SUBCLASS 429 / 56
.~ Blowout type

Current as of: June, 1999
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429 /   HD   CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS

53  DF  MEANS EXTERNALLY RELEASING INTERNAL GAS PRESSURE FROM CLOSED CELL, I.E., VALVE ETC. {2}
56.~ Blowout type

DEFINITION

Classification: 429/56

(under subclass 53) Apparatus wherein the release means functions upon reaching a predetermined pressure thereby preventing damage to the apparatus.